The expanded forms are:
- \(\log(\sqrt{x}) = \frac{1}{2} \log(x)\)
- \(\ln\left(\sqrt[3]{x^{2}}\right) = \frac{2}{3} \ln(x)\)
Thus, the final answers are:
\[
\boxed{\log(\sqrt{x}) = \frac{1}{2} \log(x)}
\]
\[
\boxed{\ln\left(\sqrt[3]{x^{2}}\right) = \frac{2}{3} \ln(x)}
\]